//--------------------------------------------------------------------------
//	Copyright (c) 1998-2004, Drew Davidson and Luke Blanshard
//  All rights reserved.
//
//	Redistribution and use in source and binary forms, with or without
//  modification, are permitted provided that the following conditions are
//  met:
//
//	Redistributions of source code must retain the above copyright notice,
//  this list of conditions and the following disclaimer.
//	Redistributions in binary form must reproduce the above copyright
//  notice, this list of conditions and the following disclaimer in the
//  documentation and/or other materials provided with the distribution.
//	Neither the name of the Drew Davidson nor the names of its contributors
//  may be used to endorse or promote products derived from this software
//  without specific prior written permission.
//
//	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
//  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
//  AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
//  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
//  THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
//  DAMAGE.
//--------------------------------------------------------------------------
package org.apache.ibatis.ognl;

/**
 * @author Luke Blanshard (blanshlu@netscape.net)
 * @author Drew Davidson (drew@ognl.org)
 */
class ASTStaticMethod extends SimpleNode {
  private String className;
  private String methodName;

  public ASTStaticMethod(int id) {
    super(id);
  }

  public ASTStaticMethod(OgnlParser p, int id) {
    super(p, id);
  }

  /**
   * Called from parser action.
   */
  void init(String className, String methodName) {
    this.className = className;
    this.methodName = methodName;
  }

  protected Object getValueBody(OgnlContext context, Object source) throws OgnlException {
    Object[] args = OgnlRuntime.getObjectArrayPool().create(jjtGetNumChildren());
    Object root = context.getRoot();

    try {
      for (int i = 0, icount = args.length; i < icount; ++i)
        args[i] = children[i].getValue(context, root);

      return OgnlRuntime.callStaticMethod(context, className, methodName, args);
    } finally {
      OgnlRuntime.getObjectArrayPool().recycle(args);
    }
  }

  public String toString() {
    String result = "@" + className + "@" + methodName;

    result = result + "(";
    if ((children != null) && (children.length > 0)) {
      for (int i = 0; i < children.length; i++) {
        if (i > 0) {
          result = result + ", ";
        }
        result = result + children[i];
      }
    }
    result = result + ")";
    return result;
  }
}
